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A. Installation of Factory Supplied Piping and Trim
Components
Alpine (ALP) boilers have factory supplied
Miscellaneous Part Carton (P/N 102942-01 – ALP080
thru ALP210; 102942-02 – ALP285; 102942-03
– ALP399 thru ALP500), which includes supply piping
components, gas piping components, Temperature &
Pressure Gauge, Pressure Relief Valve and Drain Valve.
See Figure 30 “ Factory Supplied Piping and Trim
Installation”.
Install these components prior to connecting boiler to
system piping as follows:
VI. Water Piping and Trim
Figure 30: Factory Supplied Piping and Trim Installation
WARNING
Failure to properly pipe boiler may result in improper operation and damage to boiler or structure.
Install boiler so that the gas ignition system components are protected from water (dripping, spraying,
rain, etc.) during appliance operation and service (circulator replacement, etc.).
Oxygen contamination of boiler water will cause corrosion of iron and steel boiler components, and
can lead to boiler failure. U.S. Boiler’s Standard Warranty does not cover problems caused by oxygen
contamination of boiler water or scale (lime) build-up caused by frequent addition of water.
Do not ll boiler with softened water to prevent chloride contamination.
1. Relief
Valve Piping, ALP080 thru ALP285 Boiler
Models
a. Locate and remove ¾” NPT x close black nipple,
¾” NPT black tee, ¾” MPT x ¾” FPT Pressure
Relief Valve, ¾” NPT Drain Valve.
b. Install close nipple into tee branch, then, screw
the assembly into boiler left side front ¾”
tapping
making sure tee run outlets are in vertical
plane and parallel to boiler side.
c. Mount ¾” MPT x ¾” FPT Pressure Relief Valve
into the tee top outlet.
d. Install Drain Valve into the tee bottom outlet.
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